diff --git a/problems/0977.有序数组的平方.md b/problems/0977.有序数组的平方.md
index f89ad449..d23f948d 100644
--- a/problems/0977.有序数组的平方.md
+++ b/problems/0977.有序数组的平方.md
@@ -181,6 +181,17 @@ class Solution:
 ### Go：
 
 ```Go
+// 排序法
+func sortedSquares(nums []int) []int {
+    for i, val := range nums {
+        nums[i] *= val
+    }
+    sort.Ints(nums)
+    return nums
+}
+```
+```Go
+// 双指针法
 func sortedSquares(nums []int) []int {
 	n := len(nums)
 	i, j, k := 0, n-1, n-1